40300 ÷ 9 = 4477 R7
We're going to perform division on 40300 with 9 as the divisor.

Step 1:
9 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 4 to get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 9

Step 2:
9 goes into 40 4 times with a remainder of 4.
Write down 4 as next digit of of the result. 
Result so far: 4
Subtract 36 from 40 to get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 9

Step 3:
9 goes into 43 4 times with a remainder of 7.
Write down 4 as next digit of of the result. 
Result so far: 44
Subtract 36 from 43 to get 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 9

Step 4:
9 goes into 70 7 times with a remainder of 7.
Write down 7 as next digit of of the result. 
Result so far: 447
Subtract 63 from 70 to get 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 9

Step 5:
9 goes into 70 7 times with a remainder of 7.
Write down 7 as next digit of of the result. 
Result so far: 4477
Subtract 63 from 70 to get 7.

The final result is 4477 with a remainder of 7.